Remote access device based on GSM technology

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Several USB broadband modems

A GSM module is a device that allows electronic devices to communicate with each other over the GSM network. GSM is a standard for digital cellular communications, which means that it provides a platform for mobile devices to communicate with each other wirelessly. The GSM module is a specialized device that enables a device to send and receive data over the GSM network.

The GSM network is an essential component of modern communication systems. It is a standard used by mobile devices to communicate with each other wirelessly. The GSM network provides a reliable and secure platform for communication, which makes it a preferred choice for many applications.

The history of the GSM module dates back to the 1980s when the GSM network was first introduced. The first GSM module was designed to work with analogue phones, and it was not until the late 1990s that digital GSM modules were introduced. Today, the GSM module is an essential component used in various communication systems.

Function

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A GSM module works by connecting to the GSM network through a SIM card. The SIM card provides the module with a unique identification number, which is used to identify the device on the network. The GSM module then communicates with the network using a set of protocols, which allows it to send and receive data.

The GSM network is a digital cellular network that uses a set of protocols to enable communication between devices. The network is divided into cells, which are each serviced by a base station. The base station communicates with the devices in its cell, and the cells are interconnected to form a network.

The GSM module plays a crucial role in the communication between devices and the GSM network. It is responsible for establishing and maintaining the communication link between the device and the network. The module also handles the encryption and decryption of data, which ensures the security of the communication.

There are different types of GSM modules, each with its own functionalities. Some modules are designed to handle voice communication, while others are designed for data communication. Some modules also have built-in GPS, which allows them to provide location information.

Advantages

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There are several advantages of using a GSM module in communication systems. Some of the most significant advantages are:[1]

• Cost-effectiveness: GSM modules are cost-effective and can be used in a wide range of applications. They are also easy to install and maintain, which reduces the overall cost of the system.

• Versatility: GSM modules can be used in various communication systems, including remote monitoring and control, home automation systems, vehicle tracking systems, security systems, industrial automation systems, and healthcare systems. They can also be used in different types of devices, including mobile phones, laptops, and embedded systems.

• Reliability: The GSM network is known for its reliability, and the GSM module ensures that the communication link between devices and the network is established and maintained. This makes it a preferred choice for applications where reliability is essential, such as healthcare systems and security systems.

• Security:The GSM network provides a secure platform for communication, and the GSM module ensures that the data sent and received is encrypted and decrypted correctly. This makes it a preferred choice for applications where data security is essential, such as banking systems and healthcare systems.

See also

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References

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Additional reading:
Can't get computer to connect to GSM modem

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What is a GSM Modem?  (or GPRS Modem? or 3G Modem?)

A GSM modem is a specialized type of modem which accepts a SIM card, and operates over a subscription to a mobile operator, just like a mobile phone. From the mobile operator perspective, a GSM modem looks just like a mobile phone.

When a GSM modem is connected to a computer, this allows the computer to use the GSM modem to communicate over the mobile network.  While these GSM modems are most frequently used to provide mobile internet connectivity, many of them can also be used for sending and receiving SMS and MMS messages.

A new version of NowSMS is available that supports the ability to use Android phones as GSM modem devices for both sending and receiving SMS and MMS messages.

A new version of NowSMS is available that supports the ability to use Android phones as GSM modem devices for both sending and receiving SMS and MMS messages.

Click here to download a free 30-day trial version of NowSMS or NowSMS Lite.

A GSM modem can be a dedicated modem device with a serial, USB or Bluetooth connection, or it can be a mobile phone that provides GSM modem capabilities.

For the purpose of this document, the term GSM modem is used as a generic term to refer to any modem that supports one or more of the protocols in the GSM evolutionary family, including the 2.5G technologies GPRS and EDGE, as well as the 3G technologies WCDMA, UMTS, HSDPA and HSUPA.

A GSM modem exposes an interface that allows applications such as NowSMS to send and receive messages over the modem interface. The mobile operator charges for this message sending and receiving as if it was performed directly on a mobile phone. To perform these tasks, a GSM modem must support an “extended AT command set” for sending/receiving SMS messages, as defined in the ETSI GSM 07.05 and and 3GPP TS 27.005 specifications.

GSM modems can be a quick and efficient way to get started with SMS, because a special subscription to an SMS service provider is not required. In most parts of the world, GSM modems are a cost effective solution for receiving SMS messages, because the sender is paying for the message delivery.

A GSM modem can be a dedicated modem device with a serial, USB or Bluetooth connection, such as the Falcom Samba 75. (Other manufacturers of dedicated GSM modem devices include Wavecom, Multitech and iTegno.  We’ve also reviewed a number of modems on our technical support blog.) To begin, insert a GSM SIM card into the modem and connect it to an available USB port on your computer.

A GSM modem could also be a standard GSM mobile phone with the appropriate cable and software driver to connect to a serial port or USB port on your computer. Any phone that supports the “extended AT command set” for sending/receiving SMS messages, as defined in ETSI GSM 07.05 and/or 3GPP TS 27.005, can be supported by the Now SMS & MMS Gateway. Note that not all mobile phones support this modem interface.

Due to some compatibility issues that can exist with mobile phones, using a dedicated GSM modem is usually preferable to a GSM mobile phone. This is more of an issue with MMS messaging, where if you wish to be able to receive inbound MMS messages with the gateway, the modem interface on most GSM phones will only allow you to send MMS messages. This is because the mobile phone automatically processes received MMS message notifications without forwarding them via the modem interface.

It should also be noted that not all phones support the modem interface for sending and receiving SMS messages. In particular, most smart phones, including Blackberries, iPhone, and Windows Mobile devices, do not support this GSM modem interface for sending and receiving SMS messages at all at all. Additionally, Nokia phones that use the S60 (Series 60) interface, which is Symbian based, only support sending SMS messages via the modem interface, and do not support receiving SMS via the modem interface.

NowSMS Lite is available as a free 30-day trial.

is available as a free 30-day trial.

Click here to download the free 30-day trial version of NowSMS Lite.

Configuring NowSMS to Use a GSM Modem

Additional information on configuring NowSMS to use a GSM modem for sending and receiving SMS messages can be found at the following link:  https://nowsms.com/doc/configuring-smsc-connections/gsm-modems

Additional information on configuring NowSMS to use a GSM modem for sending and receiving MMS messages can be found at the following link:  https://nowsms.com/doc/mmsc-messaging-server/connecting-to-an-operator-mmsc/using-a-gprs-modem

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